Recycling of Waste Streams of the Biotechnological Poly(hydroxyalkanoate) Production by Haloferax mediterranei on Whey

Table 1

Comparison of important results from H. mediterranei DSM 1411 fermentation on recycled salty supernatant (10 L scale) and the original cultivation on 300 L scale.

	Original fermentation	Recycling experiment	Factor recycling experiment/original experiment
[1/h]	0.18	0.08	0.44
Duration of lag-phase [h]	17	21	1.24
Final protein concentration [g/L]	6.0	0.94	0.16
Final PHA concentration [g/L]	7.20	2.28	0.32
Final PHA in biomass [%]	66	70	1.06
Final optical density [OD420 nm]	120	62.7	0.52
Mass fraction 3HV/PHA [g/g]	0.1	0.1	1.00